No. of questions - 20
Time - 10 min
Negative marking : -0.25 mark
1.
Which one of the following is an air pollutant gas and is released by burning fossil fuel?
2.
Which of the following is not a water pollutant?
3.
The problem of water pollution with Arsenic is maximum in
4.
BOD is maximum in the Ganga river between
5.
‘Green Muffler’ is related to
6.
Which of the following takes maximum time to decay?
7.
A water body having high BOD indicates that its water is
8.
Which one of the following gases is responsible for causing acid rain in the atmosphere?
9.
The gas which leaked from Union Carbide factory, Bhopal was
10.
Bhopal Gas Tragedy (leakage of methyl isocyanate ‘MIC’) accident happened on
11.
Biological Oxygen Demand (BOD) is an indication of pollution in
12.
Polythene bags cannot be destroyed because they are made of
13.
Which one of the following is a bioindicator of air pollution?
14.
Which one of the following is not related to air pollution?
15.
Which of the following is not destroyed by bacteria?
16.
The water pollution in a river is determined by measuring the dissolved amount of
17.
Acid rain is caused by
18.
Which one of the following is biodegradable?
19.
Fly ash is a pollutive combustion product of burning
